2564612360461 has 8 divisors (see below), whose sum is σ = 2699692678880. Its totient is φ = 2429542114128.

The previous prime is 2564612360399. The next prime is 2564612360509. The reversal of 2564612360461 is 1640632164652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2564612360461 - 2²¹ = 2564610263309 is a prime.

It is a super-2 number, since 2×2564612360461² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2564612360561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1992546 + ... + 3016531.

It is an arithmetic number, because the mean of its divisors is an integer number (337461584860).

Almost surely, 2^{2564612360461} is an apocalyptic number.

It is an amenable number.

2564612360461 is a deficient number, since it is larger than the sum of its proper divisors (135080318419).

2564612360461 is a wasteful number, since it uses less digits than its factorization.

2564612360461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5036043.

The product of its (nonzero) digits is 1244160, while the sum is 46.

The spelling of 2564612360461 in words is "two trillion, five hundred sixty-four billion, six hundred twelve million, three hundred sixty thousand, four hundred sixty-one".